E X E R C I S E 4 Endocrine System Physiology O B J E C T I V E S 1. To define the following terms: metabolism‚ hormone replacement therapy‚ type 1 diabetes‚ type 2 diabetes‚ and glucose standard curve. 2. To explain the role of thyroxine in maintaining an animal’s metabolic rate. 3. To explain the effects of thyroid-stimulating hormone on an animal’s metabolic rate. 4. To understand how estrogen affects bone density. 5. To explain how hormone replacement therapy works
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symbolism was when the congress woman found a dead rat with a note in her
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conducted on rats to determine how this happens. The rats fell into the three groups as mentioned earlier. Some of the rats had their neocortexes removed. These were removed at different ages of the rats. This was to make it similar to the procedure used on children with use of only one hemisphere of their brain. They found these to have similar impacts‚ and that the ability to control their limbs were lacking. They then put rats in a tank of water that had a platform for escape. The rats that had
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assistance handled a rat pup‚ researchers found‚ it produced anxiety‚ a flood of stress hormones‚ in the pup. The dam’s licking and grooming counteracted that anxiety and calmed down that surge of hormones. Meaney and his researchers were intrigued and they wanted to learn about how licking and grooming
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skin is still drastically different. As observed in Part One‚ toads have dry‚ leathery‚ warty skin whereas rats have fine‚ tiny hairs covering their exterior. This difference in external covering is most likely due to their origins and its climate. As each animal migrated and adapted to its environment‚ it developed features (adaptations) that would help it survive. For instance‚ as rats originated from Europe where the winters are very cold‚ it can be said that their hair covering developed as
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heading up to take in the air. He ends up at the river‚ which he has never seen before. Here he meets Ratty (a water rat)‚ who at this time of year spends all his days in‚ on and close by the river. Rat takes Mole for a ride in his rowing boat. They get along well and spend many more days boating‚ with Rat teaching Mole the ways of the river. One summer day shortly thereafter‚ Rat and Mole find themselves near the grand Toad Hall and pay a visit to Toad. Toad is rich (having inherited wealth from
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PsychSim 5: HUNGER AND THE FATRAT Date: 1/27/15 This activity provides a simulated experiment on weight regulation in rats. The Hypothalamus • What are the two techniques used to study hypothalamic dysfunction? How do they differ? The two techniques used to study hypothalamic dysfunction are stimulation and destruction. To simulate the hypothalamus a small wire probe is inserted into the hypothalamus and a weak but constant current is passed through its insulated tip. Generally‚ simulation makes
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Title of the article: Maps in Your Mind Edward C. Tolman Reasons for Tolman to carry out the study were to demonstrate that complex internal cognitive activity could be studied in rats‚ not only in humans‚ and that these mental processes could be studied without the necessity of observing them directly. The theoretical propositions which this research is based on were two 2 modifications to the prevailing view that Tolman proposed. One was that the true nature and complexity of learning could
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1734 Predict Question 1: The BMR of both remaining rats will be lower than the normal rat’s BMR Predict Question 2: The normal rat will become hyperthyroidic but will not develop a goiter. Predict Question 3: The normal rat will become hyperthyroidic and develop a goiter. Predict Question 4: The normal rat will become hypothyroidic and develop a goiter. Chart 1: Effects of Hormones on Metabolic Rate Normal rat Thyroidectomized rat Hypophysectomized rat Baseline Weight (g) Variable‚ 249–251 Variable
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normal rat was approximately ________ ml O2/kg/hr. 426 2. True or False: The BMR of all three rats was approximately the same before treatment with thyroxine‚ TSH‚ or propylthiouracil. true 3. Which rat had the fastest basal metabolic rate (BMR)? normal 4. Why did the BMR’s differ between the normal rat and the surgically altered rats? Because the metabolism of the normal rat was normal. The Tx and Hypox rats’ metabolism was altered from the removal of the pituitary gland (Hypox rat) and
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